9x4x4 Kraft Corrugated Mailers ECT-32-B Crush Resistant - 50 Pack
$54.69
/ bundle of 50$1.09 per mailer
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
9" × 4" × 4"
Board / material
ECT-32-B Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 9" × 4" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | Kraft |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 11.6 lb |
| Outer carton (shipping) | 21.0 × 18.0 × 6.0 in |
| LTL freight class | Class 125 |
| GTIN | 848109047805 |
| SKU | M944K |
About this item
SKU M944K — 9" × 4" × 4", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.
The 9x4x4 Kraft Corrugated Mailers ECT-32-B Crush Resistant is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 9" x 4" x 4"; kraft material; ECT-32-B; 50 Pack. The mailer format works when the product needs a presentation-style carton or compact shipping box instead of a standard RSC case.
Ideal for shipping apparel, books, mugs, accessories, gifts, and small fragile items. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Common questions
What's the difference between ECT-32-B and other corrugated ratings?
ECT-32-B indicates 32-point Edge Crush Test strength with B-flute corrugation, ideal for moderately fragile items and repeated stacking in distribution chains. This rating balances protection, weight, and cost-efficiency for small parcel shipping.
How much assembly time do these one-piece mailers save?
These fold-and-tuck mailers assemble in seconds without tape, glue, or staples. For high-volume fulfillment centers processing 1,000+ units daily, this eliminates 3-5 minutes per box versus traditional tape-seal cartons, saving significant labor costs.
Can I stack these mailers during storage without crushing the contents?
Yes. The ECT-32-B crush-resistant construction and double-wall design on front and sides protect stacked inventory. However, stack height recommendations depend on item weight, typically safe for 4-6 bundles high in climate-controlled warehouses.
How do flat-shipping mailers reduce my freight costs?
Flat-packed mailers reduce dimensional weight significantly compared to pre-assembled boxes. A pallet of 1,000 units ships in a fraction of the cubic footage, lowering both inbound freight charges and warehouse storage footprint by 60-70%.
Order support
Questions on specs or freight?
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